Zoë Blade's notebook


ACSI (short for Atari Computer Systems Interface,[1] as opposed to SCSI), was Atari's proprietary hard drive interface. It was used by the Atari ST.

The back of the Atari ST itself merely labels the port "Hard Disk", making the term "ACSI" rather obscure at the time. A company called Supra, as well as Atari themselves, both made ACSI hard drives. Akai therefore called their compatible interface boards "Atari/Supra",[2][3] to helpfully suggest which brands of hard drive were compatible with them.

Example implementations


  1. Atari ACSI/DMA Integration Guide Jun 1991
  2. "Akai Professional Musical Instruments Catalogue 1988-1989" Akai, 1988, p. 7
  3. "Akai Professional Sampler Catalogue 1989" Akai, 1989, p. 4

Studio infrastructure: ACSI | DCB | Eurorack | MIDI | SCSI | Tracks and channels